Pocket-syringe.



D. w. REES & H. E. GARMICHAEL.

rocxm SYRINGE. APPLICATION FILED APR. 21, 1910.

Patented May 2, 1911.

Witnesses TINTTED STATE% PATENT @FFTQE.

DAVID WILLIAM REES AND HARRY ERDMAN CARIVIICHAEL, OF NEEDLES,CALIFORNIA.

POCKET-SYRINGE.

To all whom it may concern:

Be it known that we, DAVID W. Rims and HARRY E. CARMIOHAEL, citizens ofthe United States, residing at Needles, in the county of San Bernardinoand State ofCalifornia, have invented a new and useful Pocket-Syringe,of which the following is a specification.

It is the object of this invention to provide in a simple, merchantable,and inex pensive form, a syringe adapted to be carried in the pocket ofthe operator for the treatment of those local diti'iculties which rendernecessary, the employment of a pocket syringe.

Another object of the invention is to provide a syringe body of noveland improved form, so constructed that by compressing the side walls ofthe body, the contents of the syringe may readily be expelled.

Another object of the invention is to provide a novel. means formounting and for protecting, such auxiliary portions of the syringe asare represented by the nozzle and the air-inlet element thereof.

The drawings show but one form of the invention, and it is to beunderstood that changes, properly falling within the scope of what isclaimed, may be made, without departing from the spirit of theinvention.

In the accompanying drawings,Figure 1 shows the invention in sideelevation; Fig. 2 is a longitudinal section; Fig. 3 is a transversesection on the line CD of Fig. 2; and Fig. 4 is a transverse section onthe line A--B of Fig. 2.

The body of the syringe is preferably fashioned in one piece, andcomprises relatively thick edge walls 1, defining a rigid marginal ribextended entirely around the periphery of the body and located in themedian plane thereof. The side walls 2 of the body, are oppositelydisposed, and are formed by thinning out the edge walls 1; the sidewalls 2, being rendered resilient, and readily depressible in order toexpel the contents of the syringe, while the edge walls 1 are, ashereinbefore stated, rendered rigid, so as to preserve the outline ofthe body of the syringe. The edge walls 1 are spaced apart atconsiderably greater distance than are the side walls 2, thus giving tothe body of the syringe, a flat form, so that the same may readily beinserted into the pocket of a garment.

Specification of Letters Patent.

Application filed April 21, 1910.

Patented May 2, 1911.

Serial No. 558,819.

Ateach end of the body of the syringe, and formed integrally with theedge walls 1, are outstanding, tubular necks 3 and 3, provided, at theirfree ends, with outstanding annular flanges 4 and 4, the necks 3 and 3being internally threaded. Tubular members are adapted to be insertedinto the necks 3 and 3. One of these tubular mem bers comprises thenozzle of the syringe, while the other of the tubular members comprisesan element adapted to house the valve of the syringe. These tubularmembers are similar in construction. The nozzle will be described first.

The nozzle comprises a shank, which, at its inner end, is threaded asdenoted by the numeral 5, to fit within the threaded neck 3. The shankof the nozzle, denoted by the numeral 6, is provided, intermediate itsends, with an outstanding flange 7. The diameter of this flange 7 isgreater than the diameter of the flange 4 of the neck, so that flangeot' the nozzle outstands peripherally beyond the flange ot the neck.Upon the. shank 6 of the nozzle, above the flange 7, there are threads8. Above these threads 8, the nozzle is tapered, to form an entering tip9, the bore 22 of the nozzle being tapered accordingly. A. cap 10 isprovided, adapted to house the tip 9 of the nozzle. Upon its interior,and adjacent its open end, this cap 10 is threaded to engage thethreaded portion 8 of the shank of the nozzle. The flange 7 of the shankof the nozzle is adapted to be rotated into abutment with the flange 4of the neck, and the open end of the cap 10 is enlarged as denoted bythe numeral 11, to outstand beyond the flange 7 of the shank of thenozzle, the enlarged portion 11 of the cap 10 being adapted to berotated into abutment with the flange 7 of the shank; all as seen mostclearly in Fig. 2 of the drawings.

A tubular member 12 is adapted to be inserted into the neck 3.Intermediate its ends, the tubular member 12 has an outstanding flange14, arranged to project peripherally beyond the flange 4 of the neck 3.Upon both sides of its flange 14, the tubular member 12 is threaded, asdenoted by the numeral 15. A cap 16 is shown, the same being enlargedperipherally as shown at 17 to outstand beyond the periphery of theflange 14 of the tubular member 12; the relations between the elements17 14 and 1, at one end of the body of the syringe, being the same asthe relation between the elements 11, 7, and 1, at the other end of thesyringe. In the tubular member 12, there is an axial duct 18, at theinner end of which there is an outlet 19, communicao ing with theinterior of the syringe body. Intermediate its ends the duct 18 isenlarged, and rounded at one end, as shown at 20, to provide a seat fora valve, in the present instance shown in the form of a ball 21, theball reciprocating in the tubular member 12, to open and to close theduct 18.

In practical operation, a tablet of any sort, and water; or anantiseptic solution, may be placed within the body of the syringe, thenozzle of the syringe being upwardly disposed in the pocket of the user,and the cap 16 preventing any leakage of liquid through the duct 18.\Vhen it is desired to use the syringe, the caps 10 and 16 may beremoved, and by compressing the side walls 2 toward each other, thecontents of the body of the syringe will be ejected, the ball 21reciprocating in its seat, and alternately permitting and preventing theinflow of air into the interior of the syringe through the duct 18.

It is to be noted that the flange T of the shank of the nozzle outstandsperipherally beyond the flange 1 of the neck 3, the enlarged portion 11of the cap 10 outstanding beyond the flange 7. This construction, at thenozzle end of the syringe, is duplicated at the valved end thereof.

The advantage incident to this construction is that when the cap 10 orthe cap 16 is seized for rotation, the fingers of the operator cannotcome into contact with the flanges 7 or 1 1, which contingency wouldpermit the tubular members to be unscrewed,

simultaneously with the removal of the caps. Likewise, the caps 10 and16 being removed, the tubular members may be unscrewed out of the necks3 and 3, without the fingers of 5 the ope "ator coming into contact withthe flanges 1- and 4, a contingency tending to hinder the removal of thetubular elements. This result is efl ected by the fact that the flanges7 and 14 outstand peripherally be- 5 yond the flanges at and at. Thus,the caps 10 and '16 may be removed readily and quickly, withoutdisconnecting those elements upon which the caps 10 and 16 are mounted.

Having thus described the invention, what is claimed is In a syringe, abody provided with an internally threaded neck outstanding from the bodyand having at its free end, a later- 0 ally outstanding flange; a nozzlethreaded to fit within the neck and provided with an outstanding flangearranged to bear against the flange of the neck, the flange of thenozzle being arranged to project peripherally 5 beyond the flange of theneck, the nozzle being threaded beyond its flange; and a cap internallythreaded to engage the last named threaded portion of the nozzle, thecap being rotatable into abutment with the flange of the nozzle, andbeing provided with a peripheral enlargement abutting aga nst the flangeof the nozzle and outstanding peripherally beyond said flange.

In testimony that we claim the foregoing as our own, we have heretoaflixed our signatures in the presence of two witnesses.

DAVID WILLIAM REES. HARRY ERDMAN CARMICHAEL.

\Vitnesses:

R. IV. SHEEVE, C. H. 001).

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

